What was amazing or heroic?
In response to your question, my dogs probably would bark a couple times and then run away from the fire. I doubt they would have jumped on me to wake me up and then refuse to come out of the house after I was outside. I love my dogs but they are cowards.
These dogs, however, were not. Notice how in the article there is no mention of a fire alarm going off. It was the dogs that woke up the people and allowed them to get out of the house safely.
Also, it doesn't mention if the dogs somehow got trapped in the house but since the house was gutted it is easy to assume that they were. At this point they were probably barking to let people know they were still in there.